Going with Roger cuz he nails the big, dumb brute voice. Nolan North is really good, too. He sounds like Kevin Michael Richardson here. Trevor Devall sounds alright, but not nearly as good as Roger and Nolan.

And I hate to leave out Devall in my earlier analysis considering how much I usually champion the usually under(if not un)-appreciated efforts of Vancouver's voice talent, but his interpretation simply didn't leave enough of an impact for me to have much of an opinion of it.

Carmel has a good sound, but his delivery doesn't always hit the notes that it should, especially on that last line. North gets that big, brutish sound down and has more varied inflection, so I'm going with him.

Combaticons all day! Haha! Roger nails the role though and knocks it out of the park. He sounds so much more intimidating and brutal. He makes Bruticus sound like he should: an unintelligent, yet power gestalt. Nolan did great and is a really good voice actor, but his Bruticus impersonation sounds a little too similar to his Brawl voice for High Moon's video games. So, I have to go with Roger's.

@BlackWolf219 Fred Tatasciore already voiced Metroplex, Trypticon, and Omega Supreme (among other playable characters). It would probably be difficult to get another unique "titan" voice voice from him. However, Fred Tatasciore is still one of my favorite VAs.

Nolan didn't sound as natual as the others and a bit 'big brute'. It's not bad as it did sound powerful and menacing.
I'd like to hear Trevor some more but he sounds big and tough without sounding dumb.
I feel Rodger felt the most threatening and powerful feeling